139359 (2001 ME1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8697804334 ± 2.00e+00
Semi-major axis (a)2.6344145320 AU ± 3.00e+00
Inclination (i)5.95558487° ± 4.00e+00
Long. of Asc. Node (Ω)84.57556111° ± 5.00e+00
Arg. of Perihelion (ω)302.39502915° ± 6.00e+00
Mean Anomaly (M)231.01358098° ± 6.34e-06
Mean Motion (n)0.2305080549°/day ± 3.94e-01
Perihelion dist (q)0.34305232 AU ± 5.28e+00
Aphelion dist (Q)4.92577675 AU ± 7.70e+00
Orbital Period4.27588651 yr ± 7.30e+00
NGA Modelg(r)
A2-2.71168820e-05 AU/d²
Physical Parameters
H (abs. magnitude)16.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-27
RMS Residual0.370″
Uncertainty0
Orbit TypeApollo
MOID0.013294 AU
Observations Used728
Oppositions18
Arc Total2001-2025
First Observation Used2001-05-25
Last Observation Used2025-05-31
Observations (769)
Date Type RA Dec Mag Band Observatory
2001-06-19 06:13:31 C 16 51 48.15 -21 51 47.7 c 704
2001-06-19 06:13:39 C 16 51 48.10 -21 51 47.6 c 704
2001-06-19 06:31:31 C 16 51 39.77 -21 51 48.7 c 704
2001-06-19 06:32:10 C 16 51 39.47 -21 51 49.0 14.9 c 704
2001-06-19 06:51:02 C 16 51 30.66 -21 51 49.6 15.8 c 704
2001-06-19 11:32:17 C 16 49 22.24 -21 51 19.4 428
2001-06-19 11:33:33 C 16 49 21.62 -21 51 19.5 428
2001-06-19 11:34:52 C 16 49 20.98 -21 51 19.6 428
2001-06-19 11:36:09 C 16 49 20.36 -21 51 19.6 428
2001-06-19 11:37:26 C 16 49 19.75 -21 51 19.7 428
2001-06-19 22:04:02 C 16 44 16.46 -21 52 18.3 952
2001-06-19 22:04:43 C 16 44 16.08 -21 52 17.6 952
2001-06-19 22:05:21 C 16 44 15.81 -21 52 16.9 952
2001-06-19 22:14:47 C 16 44 10.97 -21 52 17.2 952
2001-06-19 22:17:09 C 16 44 09.66 -21 52 16.5 952
2001-06-19 23:52:29 C 16 43 20.36 -21 52 17.8 198
2001-06-20 05:13:25 C 16 40 37.87 -21 51 59.8 670
2001-06-20 06:46:22 C 16 39 47.94 -21 51 55.8 670
2001-06-20 12:10:45 C 16 36 54.55 -21 50 41.0 428
2001-06-20 12:12:00 C 16 36 53.84 -21 50 41.0 428
2001-06-20 12:13:18 C 16 36 53.11 -21 50 40.7 428
2001-06-20 12:14:36 C 16 36 52.39 -21 50 40.6 428
2001-06-20 12:15:52 C 16 36 51.67 -21 50 40.4 428
2001-06-20 12:17:10 C 16 36 50.95 -21 50 40.2 428
2001-06-20 20:18:34 C 16 32 22.75 -21 50 29.8 046
2001-06-20 20:19:20 C 16 32 22.32 -21 50 29.7 046
2001-06-20 20:19:59 C 16 32 21.94 -21 50 29.7 046
2001-06-20 20:20:39 C 16 32 21.55 -21 50 29.4 046
2001-06-20 20:41:06 C 16 32 09.92 -21 50 26.0 195
2001-06-20 20:53:19 C 16 32 02.66 -21 50 23.2 151
2001-06-20 20:54:03 C 16 32 02.22 -21 50 24.5 195
2001-06-20 20:56:38 C 16 32 00.72 -21 50 22.7 151
2001-06-20 20:57:29 C 16 32 00.23 -21 50 22.5 151
2001-06-20 20:58:28 C 16 31 59.65 -21 50 22.3 151
2001-06-20 20:59:28 C 16 31 59.06 -21 50 22.0 151
2001-06-20 21:00:32 C 16 31 58.41 -21 50 23.0 195
2001-06-20 21:01:08 C 16 31 58.08 -21 50 21.5 151
2001-06-20 21:02:41 C 16 31 57.08 -21 50 23.8 195
2001-06-20 22:29:27 C 16 31 06.01 -21 50 07.1 215
2001-06-20 22:31:44 C 16 31 04.65 -21 50 07.3 215
2001-06-20 22:33:04 C 16 31 03.85 -21 50 07.0 215
2001-06-20 22:34:18 C 16 31 03.15 -21 50 06.5 215
2001-06-20 22:38:58 C 16 31 00.38 -21 50 05.6 215
2001-06-21 06:46:35 C 16 26 08.93 -21 48 15.9 918
2001-06-21 06:48:44 C 16 26 07.69 -21 48 15.2 918
2001-06-21 06:51:16 C 16 26 06.06 -21 48 14.5 918
2001-06-21 06:52:54 C 16 26 05.05 -21 48 14.0 918
2001-06-21 20:28:45 C 16 17 25.49 -21 43 44.0 151
2001-06-21 20:37:39 C 16 17 19.45 -21 43 40.7 151
2001-06-21 20:38:23 C 16 17 18.98 -21 43 40.5 151
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-06-18 13:35:00 231067289.38 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)